Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tin dan canh snippets" » "tin van canh snippets", "tin dan cach snippets", "tin dan hanh snippets", "tin don canh snippets", "trinh dan canh snippets", "tin dung canh snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("tin dan canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tin dan canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tin dan canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tin dan canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.